Viral attack : transfered a file from a usb key

I transfered a file from a usb to the the desktop, the file does not open asking for adminstrator authorisation, i provided it however the file did not
delete, so logged off and shut down, when I reactivated the computer it allowed me to log in with the password, however when it entered what was the windows page, there was a blank screen saying svchost, it gives me the option to restore the file, however when I quit the dialog box or restore it nothing happens, and when I enter ctrl del to get to my task bar the option no longer appears, could you please explain how I fix this problem

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I assume the USB pen is formatted and empty.Place the Pen in a free USB on your laptop and with Explorer select the file/s you want to copy. Highlight the file names and with "My Computer" open drag the files onto the Pen.When you have finished, remove the Pen and place it in the Win7 desktop.Open Explorer on your Desktop and select the files in the Pen. Right hand mouse click on them using the move command and place them on your desktop.When you have finished you can then make folders to move them into on your Win7 Desktop.Hope this explains it for you.

Hi
Just follow these steps hope it will help you.As you haven't provide your OS so i am taking as it XP.But one more thing i would like to say if you have password in the Adminstrator then we can't help you.But still follow this:-

1.Just turn on your computer in safe mode (Press F8 continously,when you turn on the computer keep pressing it untill you got "Advanced Bootup Option" just select the safe mode)
2.Your computer will be loading lots of files.(Don't be panic.)
3.Just logon to the Adminstrator Account (You will see that).
4.Hope the Adminstrator will not ask for any password.
5.Now go to the Control Panel and change the password of your user.

Step 1
Connect
your laptop to your desktop through a home network connection. If you
have a home network, you can hook up your laptop to it via an Ethernet
cable or a wireless network card. Then, you can set a folder on your
desktop computer to be shared across the network. To set a folder as
shared in Windows, simply right click on it, select "Sharing and
security," select the "Share" tab and check the box labeled "Share this
folder on the network." You will then be able to access this folder
from your laptop and transfer files to your.hard drive.

Step 2
Purchase
a USB jump drive. These handy devices are the size of a key but can
store five gigabytes of files or even more, depending on the type of
USB jump drive you buy. Insert the USB jump drive into your USB port
and your operating system should find it as new hardware. If a window
doesn't automatically come up, you can find in your drives under "My
Computer." Then, you can click and drag files into it, remove the drive
and take it to your desktop computer and access the files there.

Step 3
Put
your files onto another external storage device, such a CD, floppy disk
or external hard drive. Files are transferable between any computers as
long as you can store them on something external, then use that
external device to move them to the other computer.

Step 4
Email
files to yourself. If you only have a few files that you would like to
transfer and don't have any of the equipment used in Steps 1 through 3,
send yourself an email with the files attached, access your email from
the other computer and download the files to your hard drive.

Best practices after nasty virus attacks that leaves your system unstable or working less than normal calls for a reinstall. My advice to you is backup any files you want to keep on a usb drive and VIRUS SCAN THE DRIVE. Once you are 100% sure that your files are backed up and virus free gather your OS install media and CD Keys then reinstall. I can not stress enough to be 110% sure your back up files are clean or you will reinfect your new OS install. With well over 12 years of experiences fighting viruses this is just the way to go rather than spending days or weeks of hair pulling trying to restore a damaged OS until this is a mission critical system for a customer.

Base from your statement I can only say only in general. If that not ask a login pass before. This could be a viral activity in your system. It could be a faked alert. Or just a features of your unit.

Either way if this is not a viral activity blue screen mean a driver and hardware conflict. Beeping means memory or video card loose contact or dirty, or fail already.

But to sure I will have your harddrive to be scan by antivirus or antimalware thru another computer, first. Then troubleshoot the unit without the harddrive just using a plain bootable DOS disc. For this you can isolate which one is faulty, a hardware failure, viral, or driver hardware confict. And also OS problem.

FOR ADDITIONAL INFORMATION ABOUT FLASH DRIVES
USB (Universal Serial Bus) flash drives are high-speed, high-capacity memory devices designed for long-term data storage and easy transport among PCs. The host PC treats the device just like a drive, so you can transfer files of all types to and from the device. Because the device emulates a drive, it supports any type of file, including audio files (such as MP3s) and graphics files (such as JPEGs [Joint Photographic Experts Group] and BMPs [bit map]). In addition, USB flash drives can easily support applications, CAD (computer-aided design) drawings, and a wealth of personal information you'd rather not leave on any particular PC. Even so, most USB flash drives are smaller than a pack of gum and can easily fit onto a key ring.

Years ago, users often referred to the practice of using floppies to transport files among PCs as sneakernet. Because USB flash drive manufacturers designed these devices for transport among PCs, their increasing popularity has given rise to a "new sneakernet."